Desiccating and pulverizing apparatus.



V. W. MASON, Ja. 6L G. I. ROCHELLE. DESICGATING AND PULVERIZING APPARATUS.

APPLICATxoN FILED APR,24.1Q0B.

W/TNESSES V. W. MASON, J1.. L G. I. ROCHELLE. DRSIUQATING AND PULVBRIZING APPARATUS,

APPLICATIN PlLBD APB.2 190B.

Patented Sept. 7. 1909.

/N VE N 70H5 2 SHEETS-SHEET 2.

W/TNESSES A TTORNE YS UNITED sTATEs P'.iTENT OFFICE.

'VGLNEY W. MASGN, JR., AND GEORGE I. ROCHELLE'OF NEW YORK, N. Y.; SAID ROCHELLE ASSIGNOR TD STANDARD MILK FLOUR CONFINI, F NEW YORK, N. Y., A CORPORA- TION OF MAINE.

:.:v-g W4 Daemon-me ND utvmmzme ,errn-iui'rus.

933,990, speciation if Lamu raient. Patented Sept. 7, 1909.

Applicativi -ll -Apl'fll 24, 1008. Serial N0. 428,970.

To all 'whom 'it may concern." y

Be it known that we, VoLNar W. Mason,

Jr., and GEORGE l. ROCHELLE, both citizens of the United States, and residents,-re etively, of the city of New York, boroug of Brooklyn in the county of Kings and State of New "ork, and the city of New York,

borough of Manhattan, in the county and State of New York, have invented a new i0 and Improved Desiccatin and Pulverizin Apparatus, of which the ollowing is a ful clear, and exact description.

Thisl invention relates to pulverizers adapted for various uses, but designed especiali' for pulverizing the solid constituents o milk 1n converting milk into a pow- 'der or Hour. In carrying out such a process, the milk is rst placed within a vacuum pan and subjected to the action of heat, which evaporates the greater part of the water from the milk. Some of the water is leftY in the milk, however, leav" the residue in a thick or pasty condition. is residue may be 'dried in any suitable manner until it forms into cakes or lumps, land then laced in a pulverizer to reduce the materia into a owde'red form.

is invention 'has or its primary object 'to take the thick pasty substance and convert it into a wder by a single operation, instead of rst drying the material and then pulverizing it. f

Other objects relating to the s ecial construction and arrangement of t e several parts constituti our invention will be readily understoo from'the following description and accompanying drawings, in which drawings like characters of reference indicate like parts throughout the views, 'and in which- Figure 1 isa longitudinal section gf a pulverizer embodying our invention; Fig. 2 1s a vertical transverse section taken on the line 2-2 olf Fi l; Fig. 3 is a longitudinal section, partly roken away, of a pulverizer embodying a modification of our invention; and Fig. 4 is a vertical transverse section taken on the line 4-4 of Fig. 3.`

As illustrated in the drawings, a shell or casing 1 is rovi'ded with a semi-cdylindrical bottom, an supported upon stan ards 2 of any suitable construction. The standards 2 are provided with bearings 3 'adapted to journal a drive shaft 4 mounted iii said bearings. Drive pulleys 5 and 6 respectivel are loosely mounted upon the drive sha t, and each pulley engages a clutch member 7 having a splined en gement with the drive shaft and o erated y a lever8 in the usual manner. rivinv gears 9 and 10 are fixedly attached to the rive shaft, the gear 9 engagingla geur 11 and the gear-10 engaging -a gear 12.

The gear 11 is mounted` upon a sleeve-13 j'onrna-led in a bearing 14 fixed to one end 'of the shell or rece tacle 1. The inner end of the sleeve 13 is xedly connected wit-li an arm 115 arranged within the shell or recep 'tacle 1. The sleeve 13 receives a similar sleeve 16 'which is fixedly attached to the gear 12. The inner end of the'said sleeve y116 is rigidly connected with an arm 17 varran ed within the rece tacle 1. The sleeve i6 'in turn serves as a aring for a hollow shaft 1S. One end of this shaft rejects be yond said sleeve and supports a riving pule 19 having a beit .20 connected therewith. I outer end of the arm 15 is attached `to a blade 21 ileferably wide and thin in cross section, an extending in a helical line longivtudiiially o'f the. casing. The opposite end of said blade is tixedly scoured' to another arm 22 similar 'to the iii-ni 15, which is provided with a sleeve similar to the` sleeve 16 and journaled 'in a bearing 23 attached to the opposite end of the casing. The arm 22 enten-ds in a direction o posite tov that of lthe fmn 15, and the blate 21 consequently extends half way around the interior of the casing, as shown in Fig. 2. A blade 24 `eei'i'nilar in general construction to the blade 21 is attached Ato the arm 17 at one end, the opposite end of said blade being fixed to an arm 25 extending in :i direction opposite to *that of 'the arm 17 and attached to a sleeve jourimled in 'the sleeve of the arm 22, in the same manner as the sleeve 16 is journaled withinthe sleeve 13 at the opposite end of the casing. The blade -21 also extends half way around the interior of the casing in a helical line, in the same general manner as the blade 2l. The arms 15 and 22 are of su'icient length to bring the outer edge of 'the blade 21 in close proximity to or in colitart with the bottom of the Casin While the urius'l und 25 are shorter than t e arms l1:5 and 22 so as to enable the blade 24 to rotate inside the path of the blade 21 with `chamber 31 having the outer edge of the blade 24 in close roximity to or in actual contact with the inner edge of the blade 24. Beaters 26 are liaedly attached to the hollow shaft 18 and are arranged in staggered relation to each other. These beaters in cross section are preferably in the form of a right angle triangle. Lonfitudinal apertures 27 are formed in the aters 26 which communicate with the interior of the hollow shaft' 18, and apertures 28 are formed in the back and one side of the beaters soY as to make a free communication between the interior of the hollow shaft 18 and the interior of the casing 1. The casing` 1 is provided with an inner bottom 29 having perforations 30 formed therein. The bottom 29 is spaced from the outer bottom of the casing 1, making an intermediate an inlet 32. The to of the casin is provided with a cover 33 w ich is secured by ,means of hinges 34 to one side of the casiV 1. Slots 35 extend lon 'tudinally of sai cover on o posite sides t ereof. and are inclosed by. 'e ongated ferrules 36 provided with flanges 37. These ferrules engage the lower end of hoods 38, which hoods extend longitudinally of said cover on opposite sides thereof.V One of the slots 35 is intended as an inlet port, and the other as an outlet port. A deiiecting plate 39 is attached to one side of the cover 1n line with the inlet opening 35.

When the device is in operation, the material to betreated is placed within the casing 1 by raising the cover 33. The cover is then secured at its free end to the shell b any suitable means. Whenthe material is first` placed within the receptacle it is of a thick consistenc and more power is required to drive the blades 21 and 24 through it. The clutch member 7 is, y therefore, brought in engagement with the larger pulley 5, and the gears 9 and 10 set in operation, which in turn rotate the gears 11 and 12 and the sleeves 13 and 16 connected therewith thereby rotating the arms 15 and 22 which carry the blades 21, and the armsl 17` and 25 which carry the blade' 24. These blades travel in the same direction. The hollow shaft 18 is started at the same time approximatelgeas the drive shaft 14, thereby rotatin the aters 26 traveling inside the path o the blade 24. The rotation`of the outer blade 21 scrapes the material from the bottom of the casing, lifts and turns it, and

throws it inward where it is beaten and turned b the inner blade 24, which in turn throws t e material inward onto the beaters 26. These beaters bein sta gered on the hollow shaft 18, beat an stir ie material so that the material within the casing 1 is subfiected to athorough stirring, beating and disintegration.

It is the purpose of this invention to d and aerate the material treated, and to this end n fan is connected with a hood inclosing theslot 35, forcing air throu h said slot into the interior of the casing. he deflecting plate 39 turns the current of air a ainst the side of the casing so that it may re ound and deflect therefrom into the interior of the casing. A supply of air under pressure is also connected with the inlet 32 of the chamber 31, and this current of air is forced from said chamber through the perforations 3() up into the main chamber or casing. In addition to these air blasts or currents the hollow shaft 18 is also connected with a fan'or blower and air is forced through said shaft and through the longitudinal apertures 27 of the beaters 26 an .the apertures 28 of Vsaid beaters, from whence the air from the shaft 18 passes into the central portion of the interior of the casing.4 B means of these sources of airsupply t e material While being beaten and pulverized is thorou hly aerated, and after being so ulverize and aerated is forced outwardV t rou h the outlet, indicated by the arrow in Fig. 2, into a receptacle so placed as to receive the flour or powder after it has been discharged from the main rece tacle.

In the construction hereinhefore described, we have embodied our invention in the form .preferred by us for use in most cases. The

construction may be modified, however, without departing from our invention, and in some ins ances we prefer to dis ense with the blades 21 and 24 and to use in ieu thereof the construction shown inFigs. 3 and 4 of the drawings. In such construction, the main ortion of the casin l is similar to that shown in Figs. 1 and 2. Instead of perforating the entire bottom, however, the inner bottom of the casin may be rovided with a longitudinal row o hollow a utinents 39- having apertures 40. Communicating with the interior of said abutments, perforatioiis41 are formed in the lower portion of the inner bottom 42 extending in line with the lon itudinal opening of the abutments 39". T lese abutments 39 are arranged alternately of the planes of rotation of the beaters 26. The beaters 26 are mounted upon a hollow shaft 43djournaled at its ends in bearings 44 attache receptacle. A driving ulley 45 is mounted upon' the shaft 43, an a supply pipe 46 is connected with the hollow interior of the shaft 43. The end ofthe supply pipe 46 is olf-set and supported on the upper yen d ofabracket 47, w ich is attached to one end of the casing 1. A suitable stalling box 48 connects the supply pipe 46 with the end of the shaft 43.

Having thus described our invention what we claim as new and `desire to secure by Letters Patent is:

1. In a desiccating and ulverizing apparatus, the combination wit a receptacle, of

llO

to the ends of the Y mounted ou cept/nele, arms of di erent length secured to ratus, the combination wit a shaft extending longitudinally centrally of said receptacle, sleeves han a telescopic en gement with each ot er tine o 'te ends of said res the inner end of the sleeves at each end. of said receptacle, an outer blade extendin s irall rom one end to the opposite en olf) sa' receptacle, and securedl at its ends to die ion er of said arms, the intermediate rtion o said blade'being free, an inner lade extendin spiraliv the length of sald receptacle, an secu at its ends to the shorter of said arms, the intermediate portion of said blade being free, a main drivin shaft, gears of different diameters'mounte onone end of said driving shaft, and gears of different diameter mounted on said sleeves at one end 'of said receptacle to engage` with the corresponding gears of the main driving shaft.

2. In a desiocating and Eulverizing apparatus, the combination wit areceptacle rovided with a semi-circular bottom, o an outer blade extending in a helical line so arranged as to enable its outer edge to travel in close proximity With the surface of said bottom, an inner blade extending in a helical line with its outer edgeadapted to travel in close proximity to the inner edge of the outer blade, arms arran d at opposite ends of said receptacle an attached to said blades, sleeves attached tol 'the arms at the y ends of said receptacle having a telesco ic engagement. with each other, gears of ifferent diameters attached to said sleeves respectively. a hollow shaft journaled in the inner of said sleeves and extending longi-A tudinally of said receptacle, beaters mounted on said shaft and having a hollow interior communicating with the interior of said hollow shaft by means of apertures formed in said shaft, and provided with discharge apertures communicating with the hollow interior of said beaters, and a driving wheel mounted on one end of said shaft outside of said receptacle.

3. In a desiccating and p1 lverizing appa- 'a rece tacle, of a hollow shaft extending longitu xnally of said receptacle, beaters mounted on said shaft and arranged in staggered relation to each other and provided with a hollow in terior communicating with the interior of said shaft by means of apertures formed in said shaft, and provided with discharge orices communicating with the interior of said receptacle, a drivingl wheel mounted on said hollow shaft and a cover for said re` ceptacle provided with longitudinal slots extending on opposite sides of said cover, longitudinally thereof, forming inlet and discharge apertures respectively.

4. In a desiccuting and pulverizing a paratus, the combination with a receptacle av-V on sai .a main driving shaft, ears of different diing an inner and an outer bottom. the inner bottom bein semi-circular in cross section and provide with apertures adapted to enable air to pass from between said bottoms to the interior of said casing, a hollow shaft extending longitudinally of said receptacle, beaters mounted on said shaft arranged in stag cred relation to each other, and pro vide with a hollow interior communicatin .with the interior of said shaft by means o a ertures formedA in said shaft, and disc arge apertures formed in said beaters communicating with the interior of said receptacle, a drive Wheel mounted on said hollow shaft and a cover for said receptacle provided with longitudinal slots on opposite `s-tles .of said cover extending longitudinally of the cover to form inlet and discharge up` ertures res tively.

5. In aA esiccatmg and pulverizing a pa ratos, the combination with a receptacle ving a bottom semi-circular in cross section, a shaft mounted in said receptacle, sleeves having a telescopic arrangement with each other and with said shaft, arms of diferent length attached to said sleeves at opposite Y en s of said receptacle, blades attached to the outer ends of said arms so that one blade will travel inside ofwthe path of the other blade, ars of differentdiameters mounted sleeves at one end of the receptacle,

ameters mounted o n said shaft and meshing with the gears of the first named shaft., und clutch operated driving mechanism attached to the main shaft.

6. In a desiccating and pulverizing u pu ratos, the combination with a receptacle laving inner and outer bottoms spaced from each other, the inner bottom being semi-circular in cross section and provided with perforations, an air supply ipe connected with the chamber between t e inner and outer bottoms, sleeves having ditferent diameters and a telcsco ing engagement with each other ournale on the opposite ends of said receptacle,` arms of different length attached to said sleeves on opposite ends of the receptacle blades extending in a helical line attached to the outer ends of said arms so as to travel in different` paths, gears havin different diameters attached to the said s eeves on one end of said receptacle, a main drive shaft gears of diilerent diameters secured to said drive shaft and meshing with the gears of said sleeves, and driving mechanism connected with the main drive shaft.

7. In a desiccat-ing and pulverizing apparatos, the combination with a receptacle hnving a cover provided with longitudinal slots extending on opposite sides of said cover, and an inner and outer bottom, the inner bottom being semi-circular in cross section and provided with perforations communicat-ing with the chamber between the inner and outer bottom` hoods inelosingr the slots iu the cover of said receptacle. an inlet extendingr into the chamber between the inner and outer bottom of the receptacle so es to enable air to be forced from said chamber into the interior of said rece tacle` n hollow shaft extending longitudina ly of the interior of said casing, beaters mounted on said shaft and provided with a hollow interior communieatin with the interior of said shaft, and Wit discharge apertures opening into the interior of said casing, and means for rotating said shaft.

8. The combination with a receptacle having inner and outer bottoms spaced from each other, the inner bottom being semi-circular in cross section and provided with perforations, an air supply pipe connected with the chamber between the inner and outer bottoms, a cover for said receptacle provided with longitudinal slots extending on opposite sides of said cover, a shaft extending lon ritudinally of the interior of said recep tac e, heaters mounted on said shaft, an outer blade extending in a helical line within said receptacle, with its outer edge arranged to travel in close proximity to the inner surface of the bottom of said receptacle, an inner blade having its outer edge arranged to travel in close proximity to the inner edge of the outer blade, said blades being arranged outside of the path of travel of the beaters, and means for rotating said blades at different speeds relatively to each other.

In testimony whereofl We have signed our names to this specification in the presence of two subscribing witnesses.

VOLNEY W. MASON, Jn. GEORGE I. ROCHELLE. Witnesses:

ROBERT W. WADE, EvnaAno B. MARSHALL. 

